The Relationship between Individual Personality Traits (Internality-Externality) and Psychological Distress in Employees in Japan

Table 2

Scores of internality-externality (locus of control) scale by sex and age distribution.

Age	All participants	Males	Females
	Mean ± SD	Mean ± SD	Mean ± SD
≤29^†	47.37±6.80	47.62±7.42	47.24±6.46
30−39^†	47.43±6.62	47.31±7.57	47.50±6.00
40−49*	46.87±6.99	47.87±7.90	46.26±6.30
≥50^†	47.25±7.10	47.81±6.72	46.55±7.51
Total^†	47.22±6.87	47.67±7.34	46.91±6.51

Significance scores representing the differences between males and females (Mann-Whitney U test).
* 𝑃<0.05, ^†not significant.